//
//  UIBarButtonItem+Extensions.swift
//  Weibo
//
//  Created by niqiang on 16/7/2.
//  Copyright © 2016年 niqiang. All rights reserved.
//

import UIKit

extension UIBarButtonItem{
//convenience 遍历构造函数
    //是否是返回按钮。如果是加上箭头
    convenience init(title: String, fontSize: CGFloat = 16, target: AnyObject?, action: Selector, isBack :Bool = false) {
        let btn: UIButton = UIButton.cz_textButton(title, fontSize: fontSize, normalColor: UIColor.darkGray(), highlightedColor: UIColor.orange())

        if isBack {
            let imageName = "navigationbar_back_withtext"
            
            btn.setImage(UIImage(named: imageName), for: UIControlState(rawValue: 0))
            btn.setImage(UIImage(named: imageName + "_highlighted"), for: .highlighted)
            
            btn.sizeToFit()
            
        }
        
        btn.addTarget(target, action: action, for: .touchUpInside)
        
        self.init(customView: btn)
        
    }
    
}
